Computer Science
Scientific paper
Apr 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cosre..47...81y&link_type=abstract
Cosmic Research, Volume 47, Issue 2, pp.81-94
Computer Science
6
96.50.Uv, 96.50.Qx, 94.30.Lr, Ejecta, Driver Gases, And Magnetic Clouds, Corotating Streams, Magnetic Storms, Substorms
Scientific paper
The main goal of this paper is to compile a catalog of large-scale phenomena in the solar wind over the observation period of 1976-2000 using the measurement data presented in the OMNI database. This work included several stages. At first the original OMNI database was supplemented by certain key parameters of the solar wind that determine the type of the solar wind stream. The following parameters belong to this group: the plasma ratio β, thermal ( NkT) and kinetic ( mNV 2) pressures of the solar wind, the ratio T/T exp of measured and expected temperatures, gradients of the plasma velocity and density, and the magnetic field gradient. The results of visualization of basic plasma parameters that determine the character of the solar wind stream are presented on the website of the Space Research Institute, Moscow. Preliminary identification of basic types of the solar wind stream (FAST and SLOW streams, Heliospheric Current Sheet (HCS), Corotating Interaction Region (CIR), EJECTA (or Interplanetary Coronal Mass Ejections), Magnetic Cloud (MC), SHEATH (compression region before EJECTA/MC), rarified region RARE, and interplanetary shock wave IS) had been made with the help of a preliminary identification program using the preset threshold criteria for plasma and interplanetary magnetic field parameters. Final identification was done by comparison with the results of visual analysis of the solar wind data. In conclusion, histograms of distributions and statistical characteristics are presented for some parameters of various large-scale types of the solar wind.
Lodkina Irina G.
Nikolaeva Nadezhda S.
Yermolaev Michael Yu.
Yermolaev Yu I.
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